U.S. President Donald Trump said Sunday that he had spoken with Apple Inc.’s CEO Tim Cook about the impact of U.S. tariffs on Chinese imports as well as competition from South Korean firm Samsung Electronics Co.

Trump said Cook “made a good case” that tariffs could hurt Apple, given that Samsung’s products would not be subject to those same tariffs. Tariffs on an additional US$300 billion worth of Chinese goods, including consumer electronics, are scheduled to go into effect in two stages Sept. 1 and Dec. 15.

By contrast, the United States and South Korea struck a trade agreement last September.

“I thought he made a very compelling argument, so I’m thinking about it,” Trump said of Cook.

U.S. stock futures rose upon opening Sunday after Trump’s comments. In addition to his comments on Apple, Trump said on Twitter earlier in the day that his administration was “doing very well with China.”

The majority of Apple’s products are due to be hit with 10 percent tariffs in the next weeks or months. Levies on the iPhone, iPad, and Apple laptops have been pushed back to Dec. 15, but the tariff on the Apple Watch, AirPods and many accessories is planned for Sept. 1. (SD-Agencies)